本区基性、超基性岩岩脉群的出露，从北向南可归纳为三个岩桨岩带。
There are three magmatic zones of clusters of basic and ultrabasic rocks from north to south in this area.
我们坐到气胎上，荡桨划过湖面，切尔西边说出她的顾虑∶坐气胎过湖安不安全？
We were on the tube, 3 paddling across the lake, when Chelsea said that she was having doubts. Was it safe crossing the lake in this tube?
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